Yukihime

雪鬼姫

She is an ice-based demon who serves as Enma's partner in their effort to return escaped demons to the underworld. In the OVA, although she displays a cold personality and a certain disdain for Enma on the surface, she is actually in love with him. However, she knows and regrets that they cannot be together because they are opposing forces (Ice/Flame). This situation plays an important part when she gets possessed by a demon. Her name means snow devil princess, and it is probably related to the Japanese folklore myth of Yuki-onna.